OneSource 401k - Pooled Employer Plan Administration

OneSource 401k is a Pooled Employer Plan (PEP) administrator based in San Jose, California that helps small and mid-sized businesses offer 401(k) retirement plans at up to 80% lower cost than traditional standalone plans. Powered by Advanced Retirement Services, LLC, OneSource serves businesses nationwide across all 50 U.S. states.

Why Choose OneSource 401k

What Is a Pooled Employer Plan (PEP)?

A Pooled Employer Plan is a type of 401(k) plan created by the SECURE Act of 2019 that allows multiple unrelated employers to participate in a single retirement plan. By pooling together, employers share administrative costs and fiduciary responsibilities, dramatically reducing individual costs and complexity. The Pooled Plan Provider (OneSource) manages all plan operations, compliance, and investment oversight.

FeatureTraditional 401(k)OneSource PEP
Annual Cost$15,000-$50,000+Up to 80% less
Time Investment10-20+ hours/month75% less
Fiduciary LiabilityOn the employerTransferred to OneSource
Plan Audit RequiredYes (100+ participants)No individual audit
Form 5500 FilingEach employer files separatelyOneSource files single Form 5500
Investment SelectionEmployer selects and monitorsOneSource manages as 3(38) fiduciary
Compliance TestingEmployer responsibleOneSource handles all testing

Services

How to Join

  1. Request a free consultation — call 855-438-4015 or email Jeff@onesource401k.com
  2. Review your customized proposal with projected savings
  3. Complete adoption documents to join the PEP
  4. Set up payroll integration for automatic contribution processing
  5. Launch employee enrollment with educational materials and support

Frequently Asked Questions

How does joining a PEP reduce costs by 80%?

Costs are shared across all employers in the pool. Audit fees, recordkeeping, legal, compliance testing, and administrative costs are spread across multiple companies. The pooled structure also provides access to institutional pricing on investments and services.

What fiduciary responsibilities does the employer retain?

When joining the OneSource PEP, the employer's fiduciary responsibilities are limited to prudently selecting and monitoring the PEP arrangement itself. All day-to-day fiduciary decisions regarding administration and investments are assumed by OneSource.

Do I need a separate plan audit?

No. Individual employers in the PEP do not need to undergo separate plan audits or file individual Form 5500 returns. OneSource handles the consolidated audit and filing for the entire PEP.

Can I customize my plan design?

Yes. Employers can customize eligibility requirements, employer contribution formulas, vesting schedules, loan provisions, and auto-enrollment settings.

Is there a minimum or maximum company size?

The OneSource PEP is designed for businesses with 1-500 employees, though it is particularly beneficial for small and mid-sized companies that find standalone plans too costly or complex.

What happens to my existing 401(k) plan?

Participant accounts can be transferred into the OneSource PEP through a plan merger or asset transfer. OneSource manages the entire transition process.

How long does setup take?

Plan setup typically takes 30-60 days, depending on plan design complexity and whether assets are being transferred from an existing plan.

Service Areas

OneSource 401k is headquartered in San Jose, California and serves businesses nationwide across all 50 states. Local expertise includes:

Contact OneSource 401k

Phone: 855-438-4015

Email: Jeff@onesource401k.com

Address: 904 Sapphire Court, San Jose, CA 95136

Website: https://www.onesource401k.com

Hours: Monday - Friday, 9:00 AM - 5:00 PM PST

Parent Company: Advanced Retirement Services, LLC

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